3/8 in. x 1/4 in. White Nylon Reducing Compression Union
3/8 in. x 1/4 in. White Nylon Reducing Compression Union
✓ In stock at our distribution warehouses — typically ships within 1–2 business days.
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- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
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The 3/8 in. x 1/4 in. White Nylon Reducing Compression Union is a white nylon compression union fitting that allows in-line disconnection of the tubing run for service without disturbing surrounding fittings. White nylon construction offers excellent chemical resistance and light weight — ideal for water treatment, RO systems, and chemical dosing where metal fittings would corrode.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | White Nylon |
| Connection Type | compression |
| Shape | Union |
| End Connections | See product title for sizes |
| Pressure Rating | 500 WOG (brass) / 150 WOG (nylon/polypropylene) |
| Temperature Range | −20°F to 250°F (nylon/poly) / −20°F to 366°F (brass/SS) |
Key Features
- White nylon — excellent chemical resistance to acids, bases, and chlorinated water
- Non-metallic — no contamination risk in potable water or DI water systems
- Lightweight and non-conductive
- Compression connection — no soldering, brazing, or special tools required
- Ferrule (sleeve) forms permanent seal on copper, brass, and compatible plastic tubing
- Reusable on copper tube; single-use on soft plastic tubing
- Allows in-line service disconnection without disturbing surrounding fittings
Common Applications
Standard in HVAC refrigerant and chilled-water piping, residential gas appliance connections, instrument tubing, water heater and boiler supply lines, and any application requiring a reliable tube-to-thread or tube-to-tube joint without soldering or brazing.
Technical Resources
- Compression Fitting Sizing Chart — Tube OD to fitting size reference
- NPT Thread Tightening Reference — Proper thread engagement turns
- Brass Fitting Types and Sizes Guide — All fitting styles explained
Cross-References
This part is an equivalent for industry part number 15-6-4N-0. Searching one of those? This is your match.